A photosensitive material which when imagewise exposed to record a latent image thereon is formed with an image by heating with a prescribed processing material superimposed thereon is used as a photographic film or the like, the photosensitive material is exposed to record an image thereon, the exposed...http://www.google.se/patents/US6183933?utm_source=gb-gplus-sharePatent US6183933 - Image forming method and system
